Hi, I need help with the following:
If X has the gamma distribution with θ = 4 and α = 2, find P(X < 5).
So far I have plugged in the numbers into the formula, but I am not sure if what I am doing is correct.
f(x) = [1/(Γ(2)4^2]x^(2-1)e^(-x/4)
Does Γ(2) have a value?
afterwards should I integrate f(x) from -infinity to 5?